The euro fell against the dollar Tuesday, bruised by poor German economic numbers and fears of a British exit from the European Union.

The single currency was recently down 0.1% at $1.1020. its lowest 5 p.m. New York level since February 2. The Wall Street Journal Dollar Index, which measures the U.S. dollar against a basket of 16 currencies, was up 0.1% at 89.38.

A survey of German business sentiment published Tuesday fell for a third straight month, following weak eurozone purchasing managers surveys on Monday. The data heightened expectations that the European Central Bank will ramp up stimulus at its monetary policy meeting next month, a move that would weigh on the euro.

At the same time, some analysts believe the single currency is also being hit by concerns over the economic impact over a potential British departure from the EU.

The move “would have negative growth implications for the rest of Europe, and more importantly could cause wider political uncertainty,” said Kit Juckes, a strategist at Société Générale, in a note to clients.

Concerns over a U.K. departure from the EU grew Sunday, after London’s popular mayor became the most prominent politician to say he would back the campaign for Britain to leave the European Union in a June 23 referendum. Some economists say the move could spur capital flight from the U.K., while hurting foreign investment and weighing on economic growth, leading bearish investors to sell the U.K. currency and pile into the dollar.

Weaker oil prices helped the dollar gain against oil-sensitive emerging market currencies. The U.S. currency was recently 0.2% higher against the Brazilian real, at 3.9569. It rose 1.5% against the Russian ruble, to 76.24.